Editing Canadian Light Source (section)

===Construction: 1999–2004===
[[Image:CLS June 2000.jpg|thumb|right|250px|The CLS building under construction in June 2000]]
[[Image:CLS construction.jpg|thumb|right|250px|CLS ring tunnel construction under way in 2001]]
[[Image:Mansbridge at CLS.jpg|thumb|right|250px|[[Peter Mansbridge]] opens [[The National (CBC)|''The National'']] on top of the storage ring, 21 October 2004]]
At the start of the project, all staff members with the former SAL were transferred into a new [[nonprofit organization|not-for-profit]] corporation, Canadian
Light Source Inc., CLSI, which had primary responsibility for the technical design, construction and operation of the facility. As a separate corporation from the University, CLSI had the legal and organizational freedom suitable for this responsibility. UMA, an experienced engineering firm, now part of [[AECOM]], with extensive experience managing large technical and civil construction projects, was hired as [[project management|project managers]].<ref name="CLSI">{{cite web | url=http://accelconf.web.cern.ch/accelconf/e04/papers/weilh04.pdf|title=Industrial involvement in the construction of synchrotron lightsources| year=2004 | accessdate=28 July 2012}}</ref>

The new building – attached to the existing SAL building, and measuring 84m by 83m in area with a maximum height of 23m – was completed in early 2001.<ref name="Bancroft"/> 

Bancroft's appointment ended in October 2001 and he returned to UWO, with Mark de Jong appointed acting director. Bancroft remained as acting Scientific Director until 2004.<ref>{{Cite web |url=http://www.lightsource.ca/enews/newsletter_October2001.php |title=CLS Newsletter October 2001 |access-date=17 April 2006 |archive-date=4 February 2012 |archive-url=https://web.archive.org/web/20120204083647/http://www.lightsource.ca/enews/newsletter_October2001.php |url-status=dead }}</ref>

The SAL LINAC was refurbished and placed back into service in 2002 while the booster and storage rings were still under construction.<ref name="Bancroft"/> First turn was achieved in the booster ring in July 2002 with full booster commissioning completed by September 2002.<ref name="booster">{{cite web | url=http://accelconf.web.cern.ch/accelconf/e04/PAPERS/THPKF025.PDF |title=Commissioning report of the CLS booster synchrotron | year=2004 | accessdate=22 July 2012}}</ref>

New director Bill Thomlinson, an expert in synchrotron medical imaging, arrived in November 2002. He was recruited from the [[European Synchrotron Radiation Facility]] where he had been the head of the medical research group.<ref name="Thom">{{cite web | url=http://news.usask.ca/archived_ocn/02-aug-09/news17.shtml | title=Thomlinson to head CLS Nov. 1| date=9 August 2002 | accessdate=28 July 2012}}</ref>

The 1991 proposal to NSERC envisioned a 1.5 GeV storage ring, since at this time the interest of the user community was mainly in the soft X-ray range. The ring was a racetrack layout of four to six [[dipole magnet|bend]] regions surrounding straights with extra [[quadrupole magnets|quadrupoles]] to allow for variable functions in the straights. The design contemplated the use of [[superconductivity|superconducting]] bends in some locations to boost
the [[photon]] energies produced. The drawback of this design was the limited number of straight sections. In 1994 a more conventional machine with 8 straight sections was proposed, again with 1.5 GeV energy. At this time more users of hard X-rays were interested and it was felt that both the energy and number of straight sections were too low. By the time funding was secured in 1999 the design had changed to 2.9 GeV, with longer straight sections to enable two [[insertion devices]] per straight, delivering beam to two independent beamlines.<ref name="SR">{{cite web | url= http://accelconf.web.cern.ch/accelconf/p03/PAPERS/TOPA001.PDF| title=The Canadian Light Source | year=2003 | accessdate=25 July 2012}}</ref>

Construction of the storage ring was completed in August 2003 and commissioning began the following month. Although beam could be stored, in March 2004 a large obstruction was found across the center of the chamber. Commissioning proceeded quickly after this was removed, and by June 2004 currents of 100mA could be achieved .<ref name="comm">{{cite web | url=http://accelconf.web.cern.ch/Accelconf/e04/PAPERS/THPKF007.PDF | title=Canadian Light Source status and commissioning results | year=2004 | accessdate=22 July 2012}}</ref>

On 22 October 2004 the CLS officially opened, with an opening ceremony attended by federal and provincial dignitaries, including then-Federal [[Minister of Finance (Canada)|Minister of Finance]] [[Ralph Goodale]] and then-[[Premier of Saskatchewan|Saskatchewan Premier]] [[Lorne Calvert]], university presidents and leading scientists. October 2004 was declared "Synchrotron Month" by the city of Saskatoon and the Saskatchewan government.<ref>{{cite web|url= http://news.usask.ca/archived_ocn/04-sep-24/news07.shtml|title= October declared Synchrotron Month |date=24 September 2004 |accessdate=26 July 2012}}</ref> [[Peter Mansbridge]] broadcast the [[Canadian Broadcasting Corporation|CBC]]'s nightly [[newscast]] [[The National (CBC)|''The National'']] from the top of the storage ring the day before the official opening.<ref name="National">{{cite web | url=http://news.usask.ca/archived_ocn/04-nov-05/news01.shtml| title=Dignitaries gather to mark synchrotron's grand opening| date=5 November 2004| accessdate=8 May 2012}}</ref> In [[Parliament of Canada|parliament]] local [[Member of Parliament|MP]] [[Lynne Yelich]] said "There were many challenges to overcome, but thanks to the vision, dedication and persistence of its supporters, the Canadian Light Source synchrotron is open for business in Saskatoon."<ref>{{cite web|url= https://openparliament.ca/debates/2004/10/21/lynne-yelich-1/only/|title= Lynne Yelich on Canadian Light Source |date=21 October 2004 |accessdate=26 July 2012}}</ref>